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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(915)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Iwo Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Gettler Ryan/Geostrategies - _ Client Prod ID UNOCAL 0123, 280047 85 Sampled 06/22/98 1 <br /> 6747 Sierra Court Suite J Sample Descript U-1 - Received 06/22/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 07/02/98 <br /> Attention Deanna_Hardin Lab Number 9806E65-02 _ Reported_07J17198 ' <br />�(f Batch Number GC070298802004A <br /> nstrument ID HP-4 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 <br /> Methyl t-Butyl Ether . . .. 2 5 ... 4 5 <br /> Benzene .. .. 050 ..... 3 <br /> Toluene 050 NO <br /> Ethyl Benzene .. 050 .. ... 10 <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 111 <br /> 0 <br /> analytes reported as N O were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> Granicher <br /> Droject Manager Page 5 <br />